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Finding the Fourth Proportional to 566.66, 782.00 and 317.99

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Solution

The fourth proportional to 566.66, 782.00 and 317.99 is: 438.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    566.66 : 782.00 = 317.99 : x
  2. Step 2: Convert to fraction form
    566.66/782.00 = 317.99/x
  3. Step 3: Cross multiply
    566.66x = 782.00 × 317.99
  4. Step 4: Simplify right side
    566.66x = 248,662.68
  5. Step 5: Solve for x
    x = 248,662.68/566.66
  6. Step 6: Final answer
    x = 438.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.